Filtering apparatus



May 15, 1923. 1,455,505

w. PATERSON FILTERI NG APPARATUS Filed sept. 9. 1922 l 2 sheets-sheet 1 uli Il 1.0,@ A 5 I. 13,2 [fafa/eraf:

May:lv 15, 1923. 1,455,505

W. PATERSON FILTER'ING APPARATUS Filed sept. 9. 1922 2 shuts-sheet 2 Y Patented May 15, 1923.

' bed when required.

(UNITED me Firmeninfo Arrnaafrus.

Application filed September 9, 1922. j Serial r`No.`5`87,134.

To .all wifi-0m t may concern/.j

lBe it known that l, WILLIAM PATnRsoN,

a subject of the King 'of Great Britain and l Ireland, and residing at lWindsor House,

pipe system for the collection of filtered* liquid and for'the distribution of compressed air and wash water for cleansing the filter The object of lthe present'invention is to provide for the uniform distribution of air and wash water-,while at the same time ar` rangingfor a system which may be readily assembled and dismantled, and easily-accessible for inspection,'renewaly and repair, if and when required. f y y .The invention consistsin filtering appa-v ratus ofthe type referred to, provided' with a manifold pipe system adaptedto be ysuperposed upon the mainr collecting or distributin header in the form of la channel or tube. ore specific-ally, the invention consists in filtering apparatus of the type referred to provided with a main collecting or distributingheader arrangedv so that itsnupper surface is substantially flush with thel bottom of the lter bed, a manifold pipe system comprising a plurality of pipes, each-having a series of apertures arranged along its length and superposed upon saidmain collecting or distributing header and means for placing in communication with one another the interiors of the main `header and vthe manifold pipes. p f The invention also vconsists l in filtering yapparatus of the abovel character, in which mode of carrying out the invention :--v

Figure l is a sectional elevation showing images y.

Figure?v looking in tliehffdirection of Vthe arrows." 4 y In carrying my invention into effect in one convenient manner as, for example, *11il its application to apparatus for filteringwater, .f i

I arrange beneath vthe filter beda mai'ncoll lecting or distributingheader 'a in the form' of a channel orgtube which'niay be .formed` of metal, e'arthenwaresor'other suitable ma:-

terial `and which y"is so positioned 'thatlts upper surface is substantially flush with the jl i,

lower surface 'of' the filter bed. Along v'the length of thisheader for pipe kprovidekaclO series Vof "-apertured bosses" Z) through veach of which passesthe limb c of a Tgpiecedto thejl'ateifal parts ofthe hea-d of which are vsecured themanifold tubes orlpipe's by screwing or yotherwise, the arrangement being such 'thata plurality of tubes may-"thus be arranged transversely in relation to the` `main header and superposed thereon,"'as

shown, the `tubes 'being'held `down in pairs or singly o r 1n. any other'convenient number bymeansof clamping `plates 7 and studs g or the like screwed or]otherwisehXedfinto y y the` header and passing through said clamp-V ing plates.

throughout the system while at the' same time providing for avsystem which may be conveniently assembled from above and which may be rap-idly and readily dismantled ifI and when required,

advantage, ras compared with existing arrangements, that there is: vei'y little, ifaiiyy portion,of the -filter bed occupied by pro,-

jectiiig 'pipes or tubes. I may also `provide n one or two'l' or othershapedveiiting holes (not shown)` onk top of the header vand c-f while i at the same time possessing the additional the -inanifold tubesL preferablywitli side discharges.y Y

vThe limbs or extensions C ofthe Tc-pieces',

projecting into the interior 'of tlielieader' provide for a very 'even kdistribution of compressed air when` the same is to be i'n-y troduced, since` the said extensions. form` water seals, with the result that the compressedl air on entering the system has vfirst to veXpel'the water fronithe header 'down' to the level at the bottom of theextension iiof" 2f f v1,4:5a505 Moreover, eachy of said limbs orextensions is furnished withv a small vent '7l ensuring vuniform distribution Aof the air with the AWater iirst ejected by the compressed airl and also facilitating the exit of airv vfrom `the manifold pipe system when the air is cut off i and Wash Water applied.

' androlleeting system are foifinech-While` at It Will be understood that .the invention is not to beconfined to any'partieular form or` lconstruction 'of ilteriiig apparatus,'norv to any particular materials from which the various paitsvof my improved distributing the saine .time I may inodiiiy lthe number and arrangement off the *distributing and collecting pipes and the means for securing the saine yin a superposed position upon the inainheader, as maybe determined by'a'riy particular prac-tical requirementsvthat may have to be fulfilled. l f n Moreover, ingadditionto providing for the Central clamping of the pipes upon the header, the outer ends of the same may also be. retained in position, necessary or desirable, by means of`subsidiaryelampiiig plates or `bars 7a.

Havino now described in i. invention What lflaim as new and desire to ,secure by Letters Patent is l.v A. iltering apparatus including` 'a foundation provided with a substantially hori-V zontal surface, a header arranged mainly l below said*horizontal surface and'pro-vided f on .itsiipper side With spaced apertured bosses, `T-pieees having vertieal limbs eX- tendinginto the header through saidbosses,

"3L Filtering oppositely s, extending aperturedt pipes eX- tending over said horizontal s ur-acejand connected to said T-pieces, elarnpiiigiplates engaging said T-pieces, and locking inembers engaging the clamping plates for holding the T-pieces and apertured pipes in cony neetion with said header.

2.' Filtering v apparatus of the type inre- I -erred to Comprisinga main colleeting and distributing header'liaving a. plurality of apertured bosses along its.u'pperfsurfaee; a

lpieee loosely inserted intoI each ofjsaid apertures, aperture'dl pipes'seeured .,toQthe` lateral y .parts ot the head of eaeh Tfpiec'e,v and clamping;v means for holding said "l"- pieees in positiontlie limbyfo 'eafehQTpieee extending v'into ythe header and provided. with' a vent hole varrizinged "within the i header.

ferred to eomprisinga main.Colleetingvfand distributing header inthe form of a. tube so arranged that its upper surface isjsubstanapparatus .of-f thel' typek reL ing' apertured pipes eXteiiding i laterally therefrom and their limbs v`extendinginto the header throughthe apertured bossesand clamping `plates lfor thefT-piecesifand' for the outerfends of said apertured pipes 'for the purpose of holdingthe sameqinlpositiony In testimony'whereof I havesigned ymyl naine 'to this SpQGCatOlL f gin/I.. PATERSON@ 

